A native of Argentina, Lelio has worked for 25 years in organizational development and analysis, resource mobilization and programme management for a number of international agencies. Before joining Unitaid, he headed the Africa and the Middle East department at the Global Fund, overseeing a large portfolio of grants spanning nearly 50 countries. Prior to that, Lelio supervised large-scale programmes at the World Bank and the Inter-American Development Bank that focused on modernizing state structures in Latin America. He has also managed development initiatives and advised governments on implementation of technical assistance programs in complex political environments. Earlier in his career, Lelio worked for UNESCO and UNDP, as well as for the government of his native Argentina. He holds Bachelor’s and Master’s degrees in Public, Administrative and International Law.